var FDM=0;
var FDMjsb = 0;
var ViewNum=0;
var SndIn = props.globals.getNode("/sim/sound/Cvolume",1);
var SndOut = props.globals.getNode("/sim/sound/Ovolume",1);
var Grd_Idle=1;
var Annun = props.globals.getNode("instrumentation/annunciators",1);
var MstrWarn =Annun.getNode("master-warning",1);
var MstrCaution = Annun.getNode("master-caution",1);
var PWR2 =0;
var EFB = gui.Dialog.new("/sim/gui/dialogs/EFB/dialog","Aircraft/T7-RedHawk/Systems/EFB-dlg.xml");

var APU = {
  new : func(eng_num) {
    m = { parents : [JetEngine]};
    m.ITTlimit=6;
    m.fdensity = getprop("consumables/fuel/tank/density-ppg") or 6.72;
    m.eng = props.globals.initNode("engines/engine["~eng_num~"]");
    m.controls = props.globals.initNode("controls/engines/engine["~eng_num~"]");
    m.running = m.eng.initNode("running",0,"BOOL");
    m.itt=m.eng.initNode("itt-norm",0.0);
    m.itt_c=m.eng.initNode("itt-celcius",0.0);
    m.n1 = m.eng.initNode("n1");
    m.n2 = m.eng.initNode("n2");
    m.fan = m.eng.initNode("fan",0.0);
    m.cycle_up = 0;
    m.turbine = m.eng.initNode("turbine",0.0);
    m.throttle_lever = m.controls.initNode("throttle-lever",0.0);
    m.throttle = m.controls.initNode("throttle",0.0);
    m.ignition = m.controls.initNode("ignition",1);
    m.cutoff = m.controls.initNode("cutoff",1,"BOOL");
    m.engine_off=1;
    m.fuel_out = m.eng.initNode("out-of-fuel",0,"BOOL");
    m.starter = m.controls.initNode("starter");
    m.fuel_pph=m.eng.initNode("fuel-flow_pph",0.0);
    m.fuel_gph=m.eng.initNode("fuel-flow-gph");
    m.hpump=props.globals.initNode("systems/hydraulics/pump-psi["~eng_num~"]",0.0);

    m.Lfuel = setlistener(m.fuel_out, func (fl) {m.shutdown(fl.getValue())},1,0);
    m.Lign = setlistener(m.ignition, func (ig) {m.shutdown(1-ig.getValue())},1,0);
    m.CutOff = setlistener(m.cutoff, func (ct){m.engine_off=ct.getValue()},1,0);
    return m;
  },

  #### update ####
  update : func {
    if(!me.engine_off) {
      var thr = me.throttle.getValue();
      me.fan.setValue(me.n1.getValue());
      me.turbine.setValue(me.n2.getValue());
      if (getprop("controls/engines/grnd_idle")) {
        thr *=0.92;
      }
      me.throttle_lever.setValue(thr);
    } else {
      me.throttle_lever.setValue(0);
      if (me.starter.getBoolValue()) {
        me.cycle_up=me.ignition.getValue();
      }
      if (me.cycle_up) {
        me.spool_up(15);
      } else {
        var tmprpm = me.fan.getValue();
        if (tmprpm > 0.0) {
          tmprpm -= getprop("sim/time/delta-sec") * 2;
          me.fan.setValue(tmprpm);
          me.turbine.setValue(tmprpm);
        }
      }
    }
    me.fuel_pph.setValue(me.fuel_gph.getValue()*me.fdensity);
    var hpsi =me.fan.getValue();
    if (hpsi>60) {
      hpsi = 60;
    }
    me.hpump.setValue(hpsi);
    me.itt_c.setValue(me.fan.getValue() * me.ITTlimit);
  },

  spool_up : func(scnds) {
    if (!me.engine_off) {
      return;
    } else {
      var n1=me.n1.getValue() ;
      var n1factor = n1/scnds;
      var n2=me.n2.getValue() ;
      var n2factor = n2/scnds;
      var tmprpm = me.fan.getValue();
      tmprpm += getprop("sim/time/delta-sec") * n1factor;
      var tmprpm2 = me.turbine.getValue();
      tmprpm2 += getprop("sim/time/delta-sec") * n2factor;
      me.fan.setValue(tmprpm);
      me.turbine.setValue(tmprpm2);
      if (tmprpm >= me.n1.getValue()) {
        me.cutoff.setBoolValue(0);
        me.cycle_up=0;
      }
    }
  },

  shutdown : func(b) {
    if (b!=0) {
      me.cutoff.setBoolValue(1);
    }
  }
};

#Jet Engine Helper class
# ie: var Eng = JetEngine.new(engine number);
var JetEngine = {
  new : func(eng_num) {
    m = { parents : [JetEngine]};
    m.ITTlimit=8.9;
    m.fdensity = getprop("consumables/fuel/tank/density-ppg") or 6.72;
    m.eng = props.globals.initNode("engines/engine["~eng_num~"]");
    m.controls = props.globals.initNode("controls/engines/engine["~eng_num~"]");
    m.running = m.eng.initNode("running",0,"BOOL");
    m.itt=m.eng.initNode("itt-norm",0.0);
    m.itt_c=m.eng.initNode("itt-celcius",0.0);
    m.n1 = m.eng.initNode("n1");
    m.n2 = m.eng.initNode("n2");
    m.fan = m.eng.initNode("fan",0.0);
    m.cycle_up = 0;
    m.turbine = m.eng.initNode("turbine",0.0);
    m.throttle_lever = m.controls.initNode("throttle-lever",0.0);
    m.throttle = m.controls.initNode("throttle",0.0);
    m.ignition = m.controls.initNode("ignition",1);
    m.cutoff = m.controls.initNode("cutoff",1,"BOOL");
    m.engine_off=1;
    m.fuel_out = m.eng.initNode("out-of-fuel",0,"BOOL");
    m.starter = m.controls.initNode("starter");
    m.fuel_pph=m.eng.initNode("fuel-flow_pph",0.0);
    m.fuel_gph=m.eng.initNode("fuel-flow-gph");
    m.hpump=props.globals.initNode("systems/hydraulics/pump-psi["~eng_num~"]",0.0);

    m.Lfuel = setlistener(m.fuel_out, func (fl) {m.shutdown(fl.getValue())},1,0);
    m.Lign = setlistener(m.ignition, func (ig) {m.shutdown(1-ig.getValue())},1,0);
    m.CutOff = setlistener(m.cutoff, func (ct){m.engine_off=ct.getValue()},1,0);
    return m;
  },

  #### update ####
  update : func{
    if (!me.engine_off) {
      var thr = me.throttle.getValue();
      me.fan.setValue(me.n1.getValue());
      me.turbine.setValue(me.n2.getValue());
      if (getprop("controls/engines/grnd_idle")) {
        thr *=0.92;
      }
      me.throttle_lever.setValue(thr);
    } else {
      me.throttle_lever.setValue(0);
      if (me.starter.getBoolValue()) {
        me.cycle_up=me.ignition.getValue();
      }
      if (me.cycle_up) {
        me.spool_up(15);
      } else {
        var tmprpm = me.fan.getValue();
        if (tmprpm > 0.0) {
          tmprpm -= getprop("sim/time/delta-sec") * 2;
          me.fan.setValue(tmprpm);
          me.turbine.setValue(tmprpm);
        }
      }
    }
    me.fuel_pph.setValue(me.fuel_gph.getValue()*me.fdensity);
    var hpsi =me.fan.getValue();
    if (hpsi>60) {
      hpsi = 60;
    }
    me.hpump.setValue(hpsi);
    me.itt_c.setValue(me.fan.getValue() * me.ITTlimit);
  },

  spool_up : func(scnds) {
    if (!me.engine_off) {
      return;
    } else {
      var n1=me.n1.getValue() ;
      var n1factor = n1/scnds;
      var n2=me.n2.getValue() ;
      var n2factor = n2/scnds;
      var tmprpm = me.fan.getValue();
      tmprpm += getprop("sim/time/delta-sec") * n1factor;
      var tmprpm2 = me.turbine.getValue();
      tmprpm2 += getprop("sim/time/delta-sec") * n2factor;
      me.fan.setValue(tmprpm);
      me.turbine.setValue(tmprpm2);
      if (tmprpm >= me.n1.getValue()) {
        me.cutoff.setBoolValue(0);
        me.cycle_up=0;
      }
    }
  },

  shutdown : func(b){
    if (b!=0) {
      me.cutoff.setBoolValue(1);
    }
  }
};

aircraft.light.new("instrumentation/annunciators", [0.5, 0.5], MstrCaution);
var cabin_door = aircraft.door.new("/controls/cabin-door", 2);
var FHmeter = aircraft.timer.new("/instrumentation/clock/flight-meter-sec", 10,1);
var Grd_Idle=props.globals.getNode("controls/engines/grnd-idle",1);
Grd_Idle.setBoolValue(1);
var LHeng= JetEngine.new(0);
var CHeng= JetEngine.new(1);
var RHeng= JetEngine.new(2);
var APU= APU.new(3);

#######################################
setlistener("/sim/signals/fdm-initialized", func {
  SndIn.setDoubleValue(0.75);
  SndOut.setDoubleValue(0.15);
  MstrWarn.setBoolValue(0);
  MstrCaution.setBoolValue(0);
  if (getprop("/sim/flight-model")=="jsb") {
    FDMjsb=1;
  }
  setprop("/sim/model/start-idling",0);
  setprop("controls/engines/N1-limit",94.0);
  setprop("/instrumentation/groundradar/id",getprop("sim/tower/airport-id"));
  settimer(update_systems,2);
});

setlistener("/autopilot/route-manager/route/num", func(wp) {

  # Mise en remarque des lignes pour éviter l'erreur : "Nasal runtime error: nil used in numeric context"
  # en console que personnellement je ne comprend pas :(

  #var wpt= wp.getValue() -1;
  #if(wpt>-1) {
  #  setprop("instrumentation/groundradar/id",getprop("autopilot/route-manager/route/wp["~wpt~"]/id"));
  #} else {
    setprop("instrumentation/groundradar/id",getprop("sim/tower/airport-id"));
  #}
},1,0);

setlistener("/gear/gear[1]/wow", func(ww){
  if (ww.getBoolValue()) {
    FHmeter.stop();
    Grd_Idle.setBoolValue(1);
  } else {
    FHmeter.start();
    Grd_Idle.setBoolValue(0);
  }
},0,0);

setlistener("sim/model/autostart", func(strt) {
  if (strt.getBoolValue()) {
    Startup();
  } else {
    Shutdown();
  }
},0,0);

setlistener("controls/gear/gear-down", func(grlock) {
  var glk= grlock.getBoolValue();
  if (!glk) {
    var GLH =getprop("gear/gear[1]/wow");
    var GRH =getprop("gear/gear[2]/wow");
    if (GLH or GRH) {
      setprop("controls/gear/gear-down",1);
    }
  }
},0,0);

setlistener("/sim/current-view/internal", func(vw) {
  if (vw.getBoolValue()) {
    SndIn.setDoubleValue(0.75);
    SndOut.setDoubleValue(0.10);
  } else {
    SndIn.setDoubleValue(0.10);
    SndOut.setDoubleValue(0.75);
  }
},1,0);

setlistener("/controls/gear/antiskid", func(as) {
  var test=as.getBoolValue();
  if (!test) {
    MstrCaution.setBoolValue(1 * PWR2);
    Annun.getNode("antiskid").setBoolValue(1 * PWR2);
  } else {
    Annun.getNode("antiskid").setBoolValue(0);
  }
},0,0);

setlistener("/sim/freeze/fuel", func(ffr) {
    var test=ffr.getBoolValue();
    if (test) {
        MstrCaution.setBoolValue(1 * PWR2);
        Annun.getNode("fuel-gauge").setBoolValue(1 * PWR2);
    } else {
        Annun.getNode("fuel-gauge").setBoolValue(0);
    }
},0,0);

var annunciators_loop = func {
  setprop("/instrumentation/annunciators/LHign",LHeng.cycle_up);
  setprop("/instrumentation/annunciators/fuel-boost",LHeng.cycle_up);
  setprop("/instrumentation/annunciators/RHign",RHeng.cycle_up);
  setprop("/instrumentation/annunciators/fuel-boost",RHeng.cycle_up);
  setprop("/instrumentation/annunciators/CHign",CHeng.cycle_up);
  setprop("/instrumentation/annunciators/fuel-boost",CHeng.cycle_up);
  var Tfuel = getprop("/consumables/fuel/total-fuel-lbs");
  if (Tfuel != nil) {
    if ( Tfuel< 200) {
      MstrCaution.setBoolValue(1 * PWR2);
      Annun.getNode("fuel-lo").setBoolValue(1 * PWR2);
    } else {
      Annun.getNode("fuel-lo").setBoolValue(0);
    }
  }

  if (getprop("/gear/gear[0]/position-norm") == 1.0) {
    Annun.getNode("gear-N").setBoolValue(1 * PWR2);
  } else {
    Annun.getNode("gear-N").setBoolValue(0);
  }

  if (getprop("/gear/gear[1]/position-norm") == 1.0) {
    Annun.getNode("gear-L").setBoolValue(1 * PWR2);
  } else {
    Annun.getNode("gear-L").setBoolValue(0);
  }

  if (getprop("/gear/gear[2]/position-norm") == 1.0) {
    Annun.getNode("gear-R").setBoolValue(1 * PWR2);
  } else {
    Annun.getNode("gear-R").setBoolValue(0);
  }

  if (getprop("/controls/electric/engine[0]/generator") == 0) {
    MstrWarn.setBoolValue(1 * PWR2);
    Annun.getNode("gen-off").setBoolValue(1 * PWR2);
  } else {
    Annun.getNode("gen-off").setBoolValue(0);
  }

  if (getprop("/controls/electric/engine[1]/generator") == 0) {
    MstrWarn.setBoolValue(1 * PWR2);
    Annun.getNode("gen-off").setBoolValue(1 * PWR2);
  } else {
    Annun.getNode("gen-off").setBoolValue(0);
  }

  if (getprop("/systems/electrical/ac-volts") < 5) {
    MstrWarn.setBoolValue(1 * PWR2);
    Annun.getNode("ac-fail").setBoolValue(1 * PWR2);
    Annun.getNode("invtr-fail").setBoolValue(1 * PWR2);
  } else {
    Annun.getNode("ac-fail").setBoolValue(0);
    Annun.getNode("invtr-fail").setBoolValue(0);
  }

  if (getprop("engines/engine[0]/fan") < 40) {
    Annun.getNode("fuel-psi").setBoolValue(1 * PWR2);
    Annun.getNode("hyd-flow").setBoolValue(1 * PWR2);
    Annun.getNode("hyd-psi").setBoolValue(1 * PWR2);
    Annun.getNode("stby-ps-htr").setBoolValue(1 * PWR2);
    Annun.getNode("aoa-htr").setBoolValue(1 * PWR2);
    Annun.getNode("ps-htr").setBoolValue(1 * PWR2);
  } else {
    Annun.getNode("fuel-psi").setBoolValue(0);
    Annun.getNode("hyd-flow").setBoolValue(0);
    Annun.getNode("hyd-psi").setBoolValue(0);
    Annun.getNode("stby-ps-htr").setBoolValue(0);
    Annun.getNode("aoa-htr").setBoolValue(0);
    Annun.getNode("ps-htr").setBoolValue(0);
  }

  if (getprop("engines/engine[1]/fan") < 40) {
    Annun.getNode("fuel-psi").setBoolValue(1 * PWR2);
    Annun.getNode("hyd-flow").setBoolValue(1 * PWR2);
    Annun.getNode("hyd-psi").setBoolValue(1 * PWR2);
  } else {
    Annun.getNode("fuel-psi").setBoolValue(0);
    Annun.getNode("hyd-flow").setBoolValue(0);
    Annun.getNode("hyd-psi").setBoolValue(0);
  }

  var spdbrk = getprop("/surface-positions/speedbrake-pos-norm");
  if (spdbrk> 0.0) {
    Annun.getNode("hyd-psi").setBoolValue(1 * PWR2);
    if (spdbrk == 1.0) {
      Annun.getNode("spd-brk").setBoolValue(1 * PWR2);
      Annun.getNode("hyd-psi").setBoolValue(0);
    }
  } else {
    Annun.getNode("hyd-psi").setBoolValue(0);
    Annun.getNode("spd-brk").setBoolValue(0);
  }

  if (getprop("/controls/cabin-door/position-norm") != 0.0) {
    MstrCaution.setBoolValue(1 * PWR2);
    Annun.getNode("cabin-door").setBoolValue(1 * PWR2);
    Annun.getNode("door-seal").setBoolValue(1 * PWR2);
  } else {
    Annun.getNode("cabin-door").setBoolValue(0);
    Annun.getNode("door-seal").setBoolValue(0);
  }
}

var Startup = func {
  setprop("controls/electric/engine[0]/generator",1);
  setprop("controls/electric/engine[1]/generator",1);
  setprop("controls/electric/engine[2]/generator",1);
  setprop("controls/electric/avionics-switch",1);
  setprop("controls/electric/battery-switch",1);
  setprop("controls/electric/inverter-switch",1);
  setprop("controls/lighting/instrument-lights",1);
  setprop("controls/lighting/nav-lights",1);
  setprop("controls/lighting/beacon",1);
  setprop("controls/lighting/strobe",1);
  setprop("controls/engines/engine[0]/cutoff",0);
  setprop("controls/engines/engine[1]/cutoff",0);
  setprop("controls/engines/engine[2]/cutoff",0);
  setprop("controls/engines/engine[0]/ignition",1);
  setprop("controls/engines/engine[1]/ignition",1);
  setprop("controls/engines/engine[2]/ignition",1);
  setprop("engines/engine[0]/running",1);
  setprop("engines/engine[1]/running",1);
  setprop("engines/engine[2]/running",1);
  setprop("controls/engines/throttle_idle",1);
}

var Shutdown = func {
  setprop("controls/electric/engine[0]/generator",0);
  setprop("controls/electric/engine[1]/generator",0);
  setprop("controls/electric/engine[2]/generator",0);
  setprop("controls/electric/avionics-switch",0);
  setprop("controls/electric/battery-switch",0);
  setprop("controls/electric/inverter-switch",0);
  setprop("controls/lighting/instrument-lights",1);
  setprop("controls/lighting/nav-lights",0);
  setprop("controls/lighting/beacon",0);
  setprop("controls/lighting/strobe",0);
  setprop("controls/engines/engine[0]/cutoff",1);
  setprop("controls/engines/engine[1]/cutoff",1);
  setprop("controls/engines/engine[2]/cutoff",1);
  setprop("controls/engines/engine[0]/ignition",0);
  setprop("controls/engines/engine[1]/ignition",0);
  setprop("controls/engines/engine[2]/ignition",0);
  setprop("engines/engine[0]/running",0);
  setprop("engines/engine[1]/running",0);
  setprop("engines/engine[2]/running",0);
}

var dme_step = func(stp) {
  var swtch= getprop("instrumentation/dme/switch-position");
  swtch += stp;
  if (swtch >3) {
    swtch=3;
  }
  if (swtch <0) {
    swtch=0;
  }
  setprop("instrumentation/dme/switch-position",swtch);

  if (swtch==0) {
    setprop("instrumentation/dme/frequencies/source","instrumentation/dme/frequencies/selected-mhz");
  } elsif(swtch==1) {
    setprop("instrumentation/dme/frequencies/source","instrumentation/nav[0]/frequencies/selected-mhz");
  } elsif(swtch==2) {
    setprop("instrumentation/dme/frequencies/source","instrumentation/dme/frequencies/selected-mhz");
  } elsif(swtch==3) {
    setprop("instrumentation/dme/frequencies/source","instrumentation/nav[1]/frequencies/selected-mhz");
  }
}

var set_radios = func(src,stp) {
  # Comm 118 - 136
  # Nav 108-118
  #ADF 100 - 1300
  var frq =0;
  if (src=="comm") {
    frq=getprop("instrumentation/comm/frequencies/standby-mhz");
    frq = frq+ stp;
    if(frq > 136.000)frq = frq-18.000;
    if(frq < 118.000)frq = frq+18.000;
    setprop("instrumentation/comm/frequencies/standby-mhz",frq);
  } elsif(src=="comm1") {
    frq=getprop("instrumentation/comm[1]/frequencies/standby-mhz");
    frq = frq+ stp;
    if(frq > 136.000)frq = frq-18.000;
    if(frq < 118.000)frq = frq+18.000;
    setprop("instrumentation/comm[1]/frequencies/standby-mhz",frq);
  } elsif(src=="nav") {
    frq=getprop("instrumentation/nav/frequencies/standby-mhz");
    frq = frq+ stp;
    if(frq > 118.000)frq = frq-10.000;
    if(frq < 108.000)frq = frq+10.000;
    setprop("instrumentation/nav/frequencies/standby-mhz",frq);
  } elsif(src=="nav1") {
    frq=getprop("instrumentation/nav[1]/frequencies/standby-mhz");
    frq = frq+ stp;
    if(frq > 118.000)frq = frq-10.000;
    if(frq < 108.000)frq = frq+10.000;
    setprop("instrumentation/nav[1]/frequencies/standby-mhz",frq);
  } elsif(src=="adf") {
    frq=getprop("instrumentation/kr-87/outputs/standby-khz");
    frq = frq+ stp;
    if(frq > 1300)frq = frq-1200;
    if(frq < 100)frq = frq+1200;
    setprop("instrumentation/kr-87/outputs/standby-khz",frq);
  }
}

var FHupdate = func(tenths) {
  var fmeter = getprop("/instrumentation/clock/flight-meter-sec");
  var fhour = fmeter/3600;
  setprop("instrumentation/clock/flight-meter-hour",fhour);
  var fmin = fhour - int(fhour);
  if (tenths !=0) {
    fmin *=100;
  } else {
    fmin *=60;
  }
  setprop("instrumentation/clock/flight-meter-min",int(fmin));
}

var gearDown = func(v) {
  if(!getprop("gear/gear[1]/wow") or !getprop("gear/gear[2]/wow")){
    if (v < 0) {
      setprop("/controls/gear/gear-down", 0);
    } elsif (v > 0) {
      setprop("/controls/gear/gear-down", 1);
    }
  }
}

########## MAIN ##############
var update_systems = func {
  LHeng.update();
  CHeng.update();
  RHeng.update();
  APU.update();
  FHupdate(0);

  if (getprop("velocities/airspeed-kt") > 40) {
    cabin_door.close();
  }

  var GrWrn = 0;
  var Ghorn = 0;
  var GLock = 0;
  PWR2 =0;
  if (getprop("systems/electrical/right-bus") > 2.0) {
    PWR2=1;
  }
  if (getprop("systems/electrical/left-bus") > 2.0) {
    PWR2=1;
  }

  if (!getprop("controls/gear/gear-down/")) {
    GrWrn =1;
  }

  if (GrWrn ==1) {
    if (getprop("engines/engine/n2")<70 or getprop("engines/engine[1]/n2")<70) {
      if (getprop("velocities/airspeed-kt") < 150) {
        if (getprop("position/altitude-agl-ft")<5000) {
          if(getprop("/surface-positions/flap-pos-norm") < 0.35)Ghorn =1;
        }
      }
    }
  }

  setprop("instrumentation/annunciators/gear-unlocked",GLock);
  setprop("instrumentation/alerts/gear-horn",Ghorn);

  # annunciators_loop();
  settimer(update_systems,0);
}
